Outlook default data file

[philq]

I have a personal mailbox in zimbra and a shared mailbox in exchange. when I created the shared mailbox, the default data file became the exchange ost file instead of the zmb file.

If I want to switch the default data file to the zmb file, I have an Outlook error saying that that the format of the data file must be the same as an ost file. The solution is to disable the cache mode on the exchange shared mailbox profile. Is there another option ?

The default data file is important for the calendar displayed in the to do bar in Outlook and to save Skype conversations in a Outlook folder.

Thanks.